[1] Cobos initially began as an arranger and composer for a Los Angeles latin-soul aggregation called 'Conexión' who released a number of popular dance cuts and one album including "I will pray" from the late 1960s to the early 1970s.

[2] In addition Cobos and his orchestra The Philharmonic Beethoven contributed further arrangements on a variety of latin releases during the 1970s.

In addition, his music reached the charts in the United Kingdom, France, Finland, Belgium, Germany, Argentina and Portugal.

He also collaborated with various singers including Plácido Domingo, José Carreras, Julio Iglesias, Ana Belén, Isabel Pantoja, Mónica Naranjo and Joaquín Sabina.

In 1998, Cobos published his biography, La danza de los corceles (The Dance of the Horses).